It's pretty grindy, imo. 1. The Blooming Deep in the Landing is really the best spot, the other 2 LSs are kinda of a pain solo. The Impasse one has so many Hazards, but that's not the part that annoys me... with strand threat, the boss can one shot you... The Bloomings LS is just long and a jumping puzzle the whole way, and the 100 second end of mission timer for the Luzaku VO at the end. If you exit it takes you to orbit. To put it in perspective, I'm pretty sure I can complete an Overflow solo faster than the Luzaka LS, 6-7 minutes... and that's as fast as I can do that LS... usually 8-10 solo. Other Sources I can confirm: Micah's weekly Cyst... That's 1 drop. Excision... I don't know if it's farmable, but I got a drop. Your first Pathfinder completion... 1 drop. And then Overflow is farmable solo or in matchmaking (but matchmaking sucks, because people use the node as a spawn for exploration and so you'll spawn into so many instances where someone has done that). 1 Drop per cycle's boss. I don't know about Dual Destiny, but I wouldn't be surprised if that is a source. Same with the weeklies. Possibly playing or replaying the Legendary Campaign, but I haven't tested that either. So, The Landing LS on Master and Overflow Final Boss. It's pretty grindy, but luckily, you only need 2 pieces... for what? The best Getaway Prismatic kit. I'd recommend going for Grenadier with weapons or Powerhouse with Grenade... mix and match... I'm combo'ing it with Smoke Jumper. The potential levels and customization possibilities for synergy, Apotheosis Harmony is also a strong alternative for the concept. The Concept being turning Warlock Transcendence into a 2nd super, that can chain supers for your allies if you use that fragment. 😇👍💠